Help for NylonX Printing Setting

[Wendyyy 0]

I'm currently using the Ultimaker S5 to print with NylonX, but my prints have been failing. Here are the settings I'm using:

 

Extruder Temperature: 260°C
Bed Adhesion Temperature: 70°C
Printing Speed: 40 mm/s
Cooling Fan: 0%
Layer Height: 0.2 mm

I’m uncertain about the correct retraction speed, and when selecting the material in the Ultimaker system, I chose PA CFF.

 

Can anyone help me figure out why the prints are failing and advise on the correct retraction speed for NylonX? Any suggestions would be greatly appreciated!

Thank you!

 

[gr5 2,235]

Your issue seems to be that the nylon isn't sticking to the glass.

 

Have you printed any kind of nylon before?  It takes a while for people to get good at nylon.  For me it was about 100 prints everytime I tried a new material.  The CF barely affects things.

 

I recommend you buy Magigoo meant for nylon.  Probably called "PA" or something (pa6 and pa12 are the 2 common forms of nylon).

 

I also recommend you flip your glass and put magigoo PA only on one side and only use that side for nylon prints and use the other side for everything else otherwise you will likely be ripping up tin slivers of glass every time you remove a print.

 

I have to go.  More advice later.  But that's the most important thing.  Get some magigoo PA.

[Wendyyy 0]

Hi,

 

Thank you for the explanation—it was very helpful! I was able to print the part successfully.

 

However, a new issue has come up. As shown in the attached pictures, the surface has roughness and irregularities. Do you have any suggestions on how to resolve this?

 

Thanks in advance for your help!

 

 

[gr5 2,235]

Is this the top, bottom, or a side.  It matters as they are printed in different ways.

 

Also make sure you don't have the "fuzzy skin" setting turned on.  You can type "fuz" in the "search settings" spot which is towards the top of the settings.  If you can't see the "search settings' then click on the blue text "show custom".

 

I think maybe you held the part just a little too close to the camera and it can't focus that close.

[Wendyyy 0]

The extra material part is in the top Y direction, and the missing corner Angle is in the upper right corner(XY)

 

the bottom layer is pretty good. the problem occur properly after 15 layer's later 

Edited September 26 by Wendyyy

[gr5 2,235]

Extra material?  I'm sorry I really can't tell what I'm seeing.  Did you check for "fuzzy skin"?

 

Please post another picture that is more clear.  Also please post your project file: menu "file" "save project as" and post that file here.  It will contain your model and how you positioned the models, your printer, material, profile and overrides.